h1 {
    text-align: center;
}

#container {
    width: 50%;
    margin-left: auto;
    margin-right: auto;
}

table {
    border-width: 1px;
    border-spacing: 2px;
    border-style: outset;
    width: 100%;
}
td {
    border-width: 1px;
    border-spacing: 2px;
    border-style: inset;
}

th {
   color: red; 
}

#button {
    margin-top: 10px;
    float: left;
}
